package pro.common.servlet;

import pro.ccy.JdbcUtils;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

@WebServlet(urlPatterns = "/wynuser/add")
public class UserAddServlet extends HttpServlet {
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

    }

    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        //1.取值
        String name = request.getParameter("n");
        String username = request.getParameter("u");
        String id = request.getParameter("i");
        //2.储值
        if(id!=null && !"null".equals(id)){
            //存在id，执行更新
            String sql="update `user` set `name` =?,username=? where id=?";
            JdbcUtils.modify(sql,username,name);
        }else {
            //不存在id，执行插入
            String sql="INSERT INTO `user` (username,`PASSWORD`,`name`) VALUES (?,'789',?)";
            JdbcUtils.modify(sql,username,name);
        }
        //3.跳转
        response.sendRedirect("/wyn/user-list.jsp");
    }
}
